Radiator for motor vehicles



AP.'KUH.NE.

RADIATOR FOR MOTOR VEHICLES. APPLICATION FILED :un: lo. 191s.. RENEWED 1uN E22 1,417,466.

l 92 l Patented May 23, 1922.

4 SHEETS-sneer 1.

P. KUHNE.

RADIATOR FOR MOTOR VEHICLES.

. APPLICATION FILED IuIIE In, 191e.. IIENEwED IuNE 22. I92I. 1,417,466.

Patented 'May 23', 1922.

4 sIIIaETsv-SHEET 2.

P. KUHNE.

ARADIATOR FOR MOTR VEHICLES. APPucATloN FILED JUNE lo, 191s. nENEwEn :uns 22.1921.

Patented May 23, 1922.

4 SHEETS-SHEET s.

P. KUHNE.

RADIATOR FOR N IOTOR VEHICLES. APPLICATION FILED IuIIE Io. 191B. IIEIIEwED IuNE 22.1921.

Patented May 23, 1922.

4 SHEETS-SHEET 4.

:away and in section.

the construction of the tubular 'members .and

NITE!) STATES PAUL KUHNE, 0F CHICAGO,

on BIRMINGHAM, ennemie.

RADIATOR MOTOR VEHLES.

image-ee.

Specification of Letters Patent. Patientin@ ifi/[ay 23, 19.229

Application filed Jline il), 15,113',y V,'zierial 179,239,201. :Renewed .Tune 2K2, 1921. `Serial No. 479,707.

To all cl2/710m- ?t may concern.' y

Be it known that L PAUL Kiri-inn, a citil Zen of the United States oi Americmresiding at Chicago, in the county of Cook and State ot illinois7 have invented certain lnew and useinl improvements in Radiators tor Motor Vehicles. oi which the iollojying is a specication. i l

My invention relates to improyements radiators Ytor motorvehicles.

'One of the primary objects .oi this inyention is to provide increased cooling surface to insure of the Water being maintained at the proper temperature. y

A further object ofi the invention to Provide mrfered meme Lfer .@Qei'eeieeily and economically7 assembling the parts, and to afford ready means for cleaning` the Frater conduit.

It is highly important that the watercoudnit be ot such construction as to ,he subjected to as much of the air as possiblea and to this end I provide spaced thin viLiL transverse tubular members, the sides of which are at all times exposed to the air `ciirrents passing` through the radiator.

In addition tofthe oregoingobjects. my 'invention oomprehends improvementsin the details of construction andarrancjementsof parts -,which will be hereafter described and particularly pointed .out in the claims.

Tn the accompanying drayvings:-

Fig. i is a front elevation oit my improved rafiator. parts being broken away.

i? 2' an end elevation of the same, parte being broken away,

Fig. is an enlarged view of `the radiator looking; from the front, the outer casing' and the end 'heads being'insection, 'p

Fig'. 4 is a plan View, parts being broken Fig. 5 isa vertical section on the line 5 of Fig. 1.. parts being lbroken away,

Figi! 6 is an enlarged "detail Vertical section on the line (5i-6 of Fig. 7, to illustrate their supports,

, Fig. 7 lis an enlarged detail horizontal sec-y tion onfthe line 7-7 of Fig. 3,

Fig. 8 is' a detail transverse section on an enlarged scale to illustrate a different arrangement .of thein'vention.'

Fig. 9 is'a detail perspective view 'of a portion of one ofthe reinforcingribs forthe tubular members.

rIhe Waterq conduit oi theprescnt ini/"ention includes essentially yertical heads l., and horizontal tubular members 2,.,rcctangiilarin cross section. Referring'. particnlarly. to Figures l to 7 g l.there are three verticelfheadsy shown, one on eachfsidey anclf;one`i1i.the center or the radiador,` and if'will theregtore i rst describe this form oiftheyinvention.. A Each vertical side or'endhead. comprises a standard vformed atv opposite ends ,yyithy n The .center head comprisesafstandard 12, 'formed on opposite sidesoi` a middle ribl, Withpoii'ts 14e. off exactly the sameshape and construction esthe ports 4i, andibetweenlsfaid Betis l@ Standard 'is presided Withopeii- .ings 15 for the nassfagreof air currents and between `the inlets 'and outlets ofy adiacentports are depressions ll-QTl-ie inletsof mniicrors,` Assistme on ottenere 'ro WERNER KUHN-n,

ports Meere alignment with the outlets of ports 4i., in the end hea ds vWhile the outlets oi said ports 14a are in'alignrnfent with" the inlets oi2 saidv ports lie s Communicating' with the outlets of .ports 4M, of the'end standards ,and they inlets of ports 1.4i. and with the outlets'of the latter and the inlets ot' thev former arel the 1Wide tubular members`2. These memberslal'erec`v `tz tng'n'lar in cross section and form one ofthe ,essential 4features 4of the Waterconduit vThe ends of the tubular members are iiaiedand Fity over Vthe bevelled surfaces of the' anges 6 ladjacent the ports. A trouirhfsh'apc xsection 17 is fitted in eachdepression '7 formed between. adjacent flanges@ in the standard, and engages the iianged ends 8 of .the adiacent members 2. lto form' a suitable l"connection for the vends oiy the tubular members,H

and to provide the'inlets and outlets for the around the ends, to seal the joints at the juncture of the inlets and outlets of the ports 4 and 14, and solder indicated at 19a is applied to the joints between the ends of the tubular member and the flanges on'the central head l2. v

Obviously when the parts thus far described are assembled, a continuous circuitous conduit is formed on each side of the center head, which' affords a long and exposed pathio'f travel for the water then passing through the radiator.

y As the members 2 are formed of thin sheet metal, and are 'of considerable length it is necessary to provide suitable means to prevent sagging. To this end each section is provided with an interior vertical rib 20, provided with lateral wings 21, soldered to the inner surfaces of the members, and its lower end is crimped with the metal forining members and is then meshed and soldered to seal the joint and form an outer bottom bearing flange 22. The fianges 22, rest on the top of bolts 23, which pass between the members 2, intermediate the end and center heads, andare fastened in a front frame bar 24, and a rear frame bar 25. Bolted to the top fianges 3, of the end heads are flanges 26, of hollow caps 27, each having a flanged inner opening- 28. Screwed into the flanged openings 28, are pipe sections 29' and 30, and at their inner ends these sec-tions are connected by a coupling 31, from which extends a pipe 32 to supply the radiator with water, and a circulating pipe 33,

which leads to the water jacket ofthe engine. From the front of the coupling eX- tends a threaded boss 3l which passesV through an opening formed in a fla-nge 34, which extends upwardly from the center head. A nut is screwedon the boss to fasten the flange and the coupling together to form a rigid structure.

In the pipe section 30, is aout off valve 35, and in the hollow cap adjacent said section is an air vent valve 36.

To thelower flanges 3, of the end kheads are bolted hollow caps 37, each formed with a flanged opening, in which fit the ends of a pipe 38, which passes freely ythrough an opening formed in the standard of the center head. The pipe 38, is provided with a cutoff valve 39, and a drain cock 40, and

`extending from said pipe isla circulating pipe 4l, which leads to the water jacket of the engine. j

ASurrounding the headsfis an'open frame 42,`tothe rear upper portion of which is bolted the bars 24 and 25;

f which a bolt 45, extends to the frame. Also v connecting the front and rear members of the frame and extending through the openings 5 are bolts 46. All the connecting bolts pass freely through the openings to allow for contraction and expansion, and yet the parts are so arranged as toform a rigid structure. 1

On the bolts 23 are resilient cushions in the form of washers 23a, which snugly fit between adjacent tubular members. These cushions are provided with flanges 23b which fit in the spaces between the frame bars and the tubular members. The cushions are for the purpose of preventing vibration and consequent rattling of the parts.

Outside the frame 42, is an open finishing frame 49, and in the open portions thereof is an ornamental screen structure to give to the radiator a neat'outward appearance and protection against injury. In Fig. 7, the frame 49, is shown spaced from the Vframe 42 for olearness.

F or small vehicles, it is not necessary to provide an intermediate head, the rigidity of the metal being sufficient to resist liability of sagging when short sections are em.- ployed. This form of the invention' is disclosed in Figure 8. The end heads, indicated at 50, are exactly of the same construction as those previously described, and the tubular members 51, connect directly -to and communicate with the ports in said heads. In this embodiment of my invention the tubular members are supported intermediate their length by bolts 53, which are supported in the frame. In other yrespects the construction is the same as that previously described.

In operation, the water from the acket of' the engine enters the circulating pipe 33, andv passes through the pipe sections 29 and 30, to the vcaps 27, and then flows through the ports Vin the end heads, and thence through the tubular members, through the' ports in the cent-er head, and so on until the lower pipe 38, is reached. The

water is then pumped through pipe 41 back to the water jacket. Obviously the water follows a long circuitous path in flowing from the top to the bottom of the radiator. Not only does the water follow a circuitous path, but from the time it enters thefirst iio tubular member until it reaches the bottom pipe it flows through a thin restricted area, as compared to the areaof the circulating pipes. 'As the tubular members are thin in cross section, and are spaced apart, the air in passing lthrough the spaces cools the surfaces of the sides of each tube, which effec tually acts to reduce the temperature of the water.

If the tubular members should become dirty, the. frame 42 `can bev removed, and by r removing the bolts 11,' the cover plates 10,.;

iframes It when using the form of invention shown in Figures l to 7, it may be .found .desirable to cut out a section ot the radiator, the valve and the valve Ain the pipe 88, are closed. ln this way the circulation will be through pipe section 29, and the tubular members on one side the center head to the circulating pipe-38.

What l claim is l. A radiator o'l the class described comprising two vertical end heads formed with a plurality of ports having inlet and outlet openings, a plurality of thin 'fiat tubular members connecting the inlets ot one head and the outlets ot the opposite head, a longitudinal re-inforcing rib in each tubular member crimped into the latter, a pipe con-v necting the upper ends of the heads, and a pipe connecting the lower ends of the heads.

2. A radiator of the class described comprising two vertical end heads and detachablesupper and lower hollow end caps each 'termed with a lateral opening, the end heads having openings between the ports 'for the passage oit air to cool the .water passing through the ports, 'flat' tubular members connecting the end heads to form a circuitous passage, a longitudinal re-enforcing rib in each tubular member and crimped into the latter, a pipe connecting and com- .municating with the lateral openings of the upper caps, a pipe connecting and'communicating with the Ylateral openings of the lower caps, the end heads having` openings 'adjacent the ends of the flat .tubular memclosing the latterv bers', and cover plates for openings. f

3. In a radiator of the class described, comprising two vertical heads having ports therein provided with inlet and outlet openings, tubular members rectangular in cross section extending between the two heads and each lcommunicating with the inlet opening of onevhead and the outletopening of the1 opposite head to form a circuitous passage,

a pipe connecting the upper ends of the heads, a pipe connecting the lower ends of the heads, interior braces for the tubular members, a frame, and bolts connecting the frame and supporting the tubular members between the heads.

4t. A radiator of the class described, comprising vertical heads formed with elongated ports having inlet and outlet openings formed partially by integral flanges and intermediate separate sections, flat tubular members having iiared ends to communicate with the inlet openings of one head and the outlet openings of the companion head, means for securing' the joints between the fiat tubular members and the separate sec` tions and the heads, a pipe connecting the upper ends of the heads, and a pipe connecting the lower ends o'l the heads.

5.` A radiator of the class described comrisinr vertical heads, each havin@ lorts P D f l b therein and openings adjacent" thereto, flat tubular members connectingthe ports in the heads, a longitudinal re-inforcing ribin each tubular member, crimped into the latter, plates for closing the openings, circulating pipes connecting the, heads, braces cxtendingacross the front of the tubular members and the pipes, braces extending acrossthe' rear of the tubular members and the pipes` and rods extending between the ,tubular members to connect the braces.

'6. A radiator oithe class described, comprising a frame, vertical heads within the frame, said heads" having ports provided with inlets and outlets yand openings in alignment therewith and at right angles thereto, bolts loosely passing through the rightangularly disposed yopenings and fastened to the trame, tubular members rectangular in cross section and `ilared at their ends and communicating with the voutlets of one head and the inlets of the. opposite head, troughs vinterposed betweenthe ends of adjacent tubular members and soldered there,-

`to `to partly `formthe inlets and outlets,fthe opposite ends. of `said members engaging and secured to-anges formed on the heads, ,detachable plates for covering the openings ,in line with'the'tubular members, caps secured Lto the top and bottom ofthe heads, afpipe connecting the upper caps, and a pipe` connecting thelower' caps. j

7. ,A radiator comprising twoiverticalend heads and a centralvertical head, the .end `heads having ports, each formed with an inlet and an outlet, the central vertical head having ports disposed on the, opposite side ota medial line, eachl porthaving an inlet and outletopening, a series of tubular members* rectangular in cross section and flared atthe ends, the fla-red ends of the tubular members Kcommunicatingwith` the inlet and outlet openings of the ports ofopposite heads, pipesy connecting the upper ends of the heads, a valve inthe upper pipe to cut off communication with the tubular sections on one side of the central head, and a pipe connecting the lower ends of the two end heads.

8. A radiator comprising a pair of end heads formed with ports, each port having an inlet and an outlet, a center head having a plurality of ports, each of said latter ports having an inlet and outlet, a plurality of tubular members rectangular in cross section connecting the inlet ports lof one head and the outlet ports of the adjacent head, a circulating pipe connecting the upper ends ot the heads, a circulating pipe connecting the lower ends of the heads, and valves arranged to cut off the circulation through the 1ics tubular members on one side of the center f `its ends flared, the flared ends engaging the flanges and the edges of the troughs, solder for securing the endsl of the troughs and the tubular members to the ianges to seal the joints and form inlets and outlets for the 'ports, solder connecting the adjacent edges of the tubular members directly to the flanges, and circulating pipes connecting the upper and lower ends ol the heads.

' l0. A radiator of the class described, comprising a pair of vertical heads having ports provided with inlets and outlets, a plurality of tubular members rectangular in cross section connecting the inlets with the outlets, a plurality of bolts extending between the tubular members, a longitudinal reinforcing rib in each tubular member and disposed at right angles to the bolts, each rib being crimped in with the metal forming the tubular member and supported on the bolt directly thereunder, and circulating pipes connecting the. upper and lower ends of the heads.

y 11. A radiator of the class described, comprising end heads each formed with ports and intervening air passages, the ports hav-y ing inlet and outlet openings, a central head formed on opposite sides with ports, each having an inlet and outlet opening, the central head having air passages between the ports, flat tubular members extending between and connecting the outlet openings of the end heads and the inlet openings of the central head and the outlet openings of the central head and inlet openings of the end heads, whereby to form two circuitous passages, caps at the top and bottom of the end heads, pipes connecting the caps at the top of the heads, pipes connecting the caps at the bottom of the end heads, and meansfor bracing the tubular members and the pipes.

l2. A radiator comprising end heads formed with ports and intervening air assages, a trough shape partition exten ing across each port to iorm` inlet and outlet openings, the heads having bevelled flanges adjacent the top and bottom walls of the ports, liat tubular members, the ends of each which engage one of the flanges and one edge oi a trough, means for securing the abutting edges of the troughs and the tubular members, a pipe connecting the upper ends of the heads, a pipe connecting the lower ends of the heads, and means for bracing the front and rear of the tubular members and the pipes.

13. A radiator comprising oppositely disposed heads, each formed with ports, each port having an inlet and an outlet opening, flat tubular members connecting the outlet openings of one head and inlet openings of the other head and the inlet openings of one head and the outlet openings of the other head, disposed means within each tubular member for bracing the top and bottom of same, front and rear braces for the flat tubular members, and rods connecting the front and rear braces, said rods forming the support for the bottoms of the tubular members and extending across the plane of the braces.

14. A radiator comprising a pair of end heads, a central head, each head having ports formed with inlet and outlet openings, lflat tubular members connecting the inlet and outlet openings, a pipe connecting the top of the two end heads, a pipe connecting the lower ends of the two end heads, a flange extending from the central head, means connecting the flange and the top pipe to form a brace, a frame around the heads, and a connection adjacent the flange to fasten the central head to the frame.

In testimony whereof I aiix my si ature.

. PAUL KU NE. 

